The latest crop of retinol products don't fight wrinkles and discoloration while you sleep -- they do it during the day. Find out how to use retinol, and why you should

If you're not a fan of layering half a dozen products on your face and neck every morning, you’ll love this one. In addition to retinol, it's got a little bit of everything else you need -- from antioxidants to moisturizing ingredients -- so it can replace your treatment products and your lotion. (However, you should still apply more sunscreen on top -- annoying, we know, but totally necessary.) New York City dermatologist Debra Jaliman, MD, likes this product because it works quickly -- you'll see a change in a week. She says it has to do with a combination of Accelerated Retinol SA (a retinol that works all day long) and glucose, which keeps the retinol molecule from breaking down before it gets a chance to get to work on your cells.

I use Neutrogena Rapid Wrinkle Repair eyecream. I think it has made a difference, but it does not have enough moisturizer in it at all. The skin underneath where I apply the cream looks terrible- really, really lined. (I'm 49.)

You CAN'T use retinol during the day. Retinol replaces old skin cells, leaving your face vulnerable to an attack on the new cells, even with sunscreen protection, which can even make the situation worse. Please don't use retinol during the day. Use it at night, as prescribed by dermatologists!